Samarium-cobalt maginito ndi maginito a Rare-earth, omwe amapangidwa ndi samarium, cobalt ndi zinthu zina zachitsulo zapadziko lapansi zomwe sizipezeka paliponse. Idapangidwa bwino mu 1970. Maginito a Samarium-cobalt ndi maginito achiwiri amphamvu kwambiri masiku ano, okhala ndi maginito apamwamba kwambiri a maginito (BHmax), kukakamiza kwakukulu, friability ndi kupasuka. Mphamvu yamaginito yamagetsi ya Samarium-cobalt imayambira pa 9 MGOe mpaka 31 MGOe. Maginito a Samarium-cobalt ali ndi magawo awiri, omwe ndi (atomu ya samarium: atomu ya cobalt) 1: 5 ndi 2:17. Mwachitsanzo, pazipita maginito mphamvu mankhwala 2:17 aloyi ndi 26 MGOe, coercivity ndi 9750 oersted, Curie kutentha ndi 825 ° C, ndi pazipita ntchito kutentha ndi 350 ° C.

Makhalidwe:
1. Kukakamiza kwabwino kwambiri.
2. Kukhazikika kwa kutentha kwabwino.
3. Mtengowu ndi wokwera mtengo komanso umatha kusinthasintha kwamitengo (cobalt market sensitivity).

Zowopsa zazikulu:
1. Maginito a Samarium-cobalt ndi osavuta kusenda. Powagwira, magalasi ayenera kuvala.
2. Kugundana kwa maginito kungachititse kuti maginito aphwanyike, zomwe zingayambitse ngozi.
3. Samarium cobalt kupanga amapangidwa ndi njira yotchedwa sintering, yomwe imaphatikizapo kupukuta zipangizo zonse, ndipo ming'alu yamkati imakhala yotheka kwambiri. Maginito alibe umphumphu wamakina ndipo amangokhala ndi ntchito yokonzekera maginito. Choncho, m'pofunika kupanga makina apadera opangira makina kuti apereke dongosolo lonse lodalirika la makina.